Mitsubishi Eclipse. Manual — part 804

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-225

STEP 8. Measure the supply voltage at A/T control
solenoid valve assembly connector B-40.
(1) Disconnect solenoid valve assembly harness connector

B-40.

(2) Turn the ignition switch to the "ON" position.

(3) Measure the voltage between harness connector B-40

terminal 9 and ground.

• The voltage should equal battery positive voltage.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage battery positive voltage?

YES : Go to Step 11.
NO : Go to Step 9.

STEP 9. Check A/T control relay connector A-17X in the
engine component relay box and A/T control solenoid
valve assembly connector B-40 for loose, corroded or
damaged terminals, or terminals pushed back in the
connector.
Q: Are the connectors and terminals in good condition?

YES : Go to Step 10.
NO : Repair or replace the damaged components. Refer to

GROUP 00E, Harness Connector Inspection

P.00E-2

.

ACX02479

CONNECTOR: B-40

AK

B-40

AC001967AT

B-40 HARNESS
CONNECTOR:
COMPONENT SIDE

AC102447AF

BATTERY

CONNECTOR: A-17X

A-17X

FRONT OF VEHICLE

ACX02479

CONNECTOR: B-40

AK

B-40

AUTOMATIC TRANSAXLE DIAGNOSIS

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AUTOMATIC TRANSAXLE

23A-226

STEP 10. Check the harness for an open circuit or short
circuit to ground between A/T control relay connector
A-17X terminal 4 in the engine component relay box and
A/T control solenoid valve assembly connector B-40
terminal 9.
Q: Is the harness wires in good condition?

YES : Go to Step 11.
NO : Repair or replace the harness wire.

STEP 11. Check A/T control solenoid valve assembly
connector B-40 and PCM connector C-61 <2.4L Engine> or
C-63 <3.0L Engine> for loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Q: Are the connectors and terminals in good condition?

YES : Go to Step 12.
NO : Repair or replace the damaged components. Refer to

GROUP 00E, Harness Connector Inspection

P.00E-2

.

AC102447AF

BATTERY

CONNECTOR: A-17X

A-17X

FRONT OF VEHICLE

ACX02479

CONNECTOR: B-40

AK

B-40

ACX02479

CONNECTOR: B-40

AK

B-40

AC001657

CONNECTOR: C-61 <2.4L ENGINE> OR
C-63 <3.0L ENGINE>

PCM

BC

C-61 <2.4L ENGINE> OR C-63 <3.0L ENGINE>

AUTOMATIC TRANSAXLE DIAGNOSIS

TSB Revision

AUTOMATIC TRANSAXLE

23A-227

STEP 12. Check the harness for an open or short circuit to
ground between A/T control solenoid valve assembly
connector B-40 (terminals 3, 4 and 5) and PCM connector
C-61 <2.4L Engine> or C-63 <3.0L Engine> (terminals 106,
120 and 130).
Q: Are the harness wires in good condition?

YES : Go to Step 13.
NO : Repair or replace the harness wire.

STEP 13. Check the harness for an open or short circuit to
ground between A/T control solenoid valve assembly
connector B-40 (terminals 3, 4, 5, and 9) and solenoid valve
connectors B-40-1, B-40-2 and B-40-3.
Q: Is the harness wire in good condition?

YES : Replace the PCM.
NO : Replace the harness wire.

ACX02479

CONNECTOR: B-40

AK

B-40

AC001657

CONNECTOR: C-61 <2.4L ENGINE> OR
C-63 <3.0L ENGINE>

PCM

BC

C-61 <2.4L ENGINE> OR C-63 <3.0L ENGINE>

ACX02479

CONNECTOR: B-40

AK

B-40

AC002219

CONNECTORS: B-40-1, B-40-2, B-40-3

CK

B-40-1

B-40-2

B-40-3

VALVE BODY
ASSEMBLY

2

1

AUTOMATIC TRANSAXLE DIAGNOSIS

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AUTOMATIC TRANSAXLE

23A-228

DTC 33 (P0763): Second Solenoid Valve System

.

Solenoid Valve System Circuit
Refer to

P.23A-209

.

.

CIRCUIT OPERATION
Refer to

P.23A-209

.

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DESCRIPTIONS OF MONITOR METHODS
If solenoid terminal voltage is below specified value
when shift control is not in progress, PCM judges
that shift second solenoid has a failure.

.

MONITOR EXECUTION
Continuous

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MONITOR EXECUTION CONDITIONS (Other
monitor and Sensor)

Other Monitor (There is no temporary DTC stored

in memory for the item monitored below)

• DTC 41 (P0731): 1st gear incorrect ratio

• DTC 42 (P0732): 2nd gear incorrect ratio

• DTC 43 (P0733): 3rd gear incorrect ratio

• DTC 44 (P0734): 4th gear incorrect ratio

• DTC 46 (P0736): Reverse gear incorrect ratio

• DTC 36 (P0743): Torque converter clutch sole-

noid malfunction

• DTC 31 (P0753): Low-reverse solenoid malfunc-

tion

• DTC 32 (P0758): Underdrive solenoid malfunc-

tion

• DTC 34 (P0768): Overdrive solenoid malfunction

• DTC 54 (P1751): A/T control relay malfunction

Sensor (The sensor below is determined to be

normal)

• Torque converter clutch solenoid

• Low-reverse solenoid

• Underdrive solenoid

• Overdrive solenoid

• A/T control relay

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